ETT ET-Mini Clock4, Manual

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MANUAL OF BOARD ET-Mini Clock4
ET-MINI CLOCK4 is Digital Clock with 4-DIGIT DOT MATRIX (8x32 DOT), and a numeral size per each digit is 3cm wide.
It can show the Time, Date, and Temperature; moreover it can be used as Timer internal Clock. This Clock supports 2 sources of Time
Base. Firstly, Time Base from internal Clock is RTC DS3231; and secondly, Time Base from External Clock is Module GPS that is
connected via Connector RJ45 (OPTION: ET-GPS-RS422). In the part of GPS, it can setup Time Zone in the range of ±
(Time Zone
for Thailand is +7).
It can setup and choose various display formats for this ET-MINI CLOCK4; it can show Date, Time, Temperature, Humidity (it
has to additionally connect ET-SENSOR AM2302); or, it is used as Timer; or, it shows flashing message “Open” or “Close”; or, it is
used as Alarm Clock to ring at a particular time in the range of 0-23 hours. There is Buzzer to produce a sound of alarm and there is
Channel of Alarm OUT in order to control operation of external device when Alarm happens.
ET-MINI CLOCK4 is controlled via IR Remote that is provided with Clock. There are 4 models as listed below;
-
ET-Mini Clock4
: With Lego Stand but No box, no voice for telling time
- ET-Mini Clock4 Box : A box with transparent acrylic, but no voice for telling time
-
ET-Mini Clock4 Plus
: With Lego Stand, voice from MP3 for telling time, but no box
-
ET-Mini Clock4 Box Plus
: A box with transparent acrylic and voice from MP3 for telling time
For the model Plus, Box Plus, there are additional features such as Speaker and Module MP3; so, user can hear the sound of Alarm for
every hour, or user can press a key to listen to the current time. There are 2 languages for telling time; Thai and English.
1) SPECIFICATIONS OF ET-MINI CLOCK4
- SPECIFICATIONS OF ALL MODELS

Clock uses POWER SUPPLY DC5V MINI USB or DC12V Type J (POWER SUPPLY 12V is supplied to Clock and GPS from
external). For general use, the Current that is supplied at the full of light of Display is 300mA approximately; and the maximum
Current at Full Load is 450mA approximately.

Clock is controlled by MCU AVR EASY MEGA328

GPS (ET-GPS-RS422) is connected via Connector RJ45; it is used as Time Base to display data. It can set Time Zone in the rage of
± ; or, it uses Time Base of RTC DS3231 internal Clock instead. The Clock always chooses Time Base from GPS automatically
after Power-ON if it is connected.

Clock receives all user’s Commands via IR Remote (provided with device)

IR Remote uses Battery 3V #CR2025 (included in set); and Clock uses Battery Backup 3V #CR2032 (included in set)

Display is in the format of 4-Digit Dot Matrix (8x32 DOT) and it only shows the time in 24-hour clock.

Choose various types of Display Mode; Date, Time, Temperature, and Humidity (OPTION: ET-SENSOR AM2302). Or, it is used
to be Timer or display flashing message “Open’ or “Close”; each display mode uses different Font.

Be used as Alarm Clock that can be set to ring at a particular time (0-23 hours). There is Buzzer to produce ringing sound; and there
is 1-CH Alarm Output that will be Signal Logic “1” when Alarm happens (Default Logic “0”). It can be connected to control
external devices.

If using Time Base from GPS, it always auto updates Date/Time of RTC (DS3231) internal Clock after Power-ON. Or, if using
Time Base from RTC (DS3231) internal device, user can manually setup Time/Date by IR-Remote.

ON/OFF and adjust 16-Level of brightness of Display (0-15), and including Reset Clock by IR-Remote
ET-Mini Clock4